Don't put all the blames on management when developers do long hours. It's the developers who decide to stay late all the time when they should not.
I don't put it all on management. It's a little of column A and a little of column B. It's tough standing up to management when they control your well-being.
Maybe one day I'll suggest a trial for it at my company ;)
Curiously, we all worked a lot, made a ton of money for years and years, and bled the company dry. They eventually brought in some accountants that told them they had to put the brakes on this, and we were converted to salary. The company still ended up shutting down a couple years later, but it was a wild and lucrative ride.